I have a friend like you describe OP.
Loads of women friends which is mainly how I know him. Has been in love / lust with many of them including me, boundaries have been crossed, his ex wife hated it but he just says its because he relates better to women.
Tbf he has loads of men friends too, is generally a popular guy .
Very kind, generous, would do anything for anyone, not materialistic etc and would do anything for his men friends too.
Good looking, interesting, fun etc but I have seen his temper more than once.
He was in love with me at one point, I didn't want to spoil our many linked friendships so didn't go there and fortunately saw the temper thing after that (not related to me but was shocking)
he's been a good friend to me but its got to the point wjere ive had to distance myself and had to say no to things or help i could really do with, for fear of givnig him the wrong idea, which is ridiculous and goes against all my feminist sensibilities.
Because we share so many friends i also fear that accepting any kindness from him will be seen as me 'leading him on' although everyone knows what he's like, because he's a 'nice guy' I'd look like the bitch.
He always bemoans the women who turn downnice guys, he has no lack of serial/ romantic dalliance but they never last for whatever reason.
Personally I think it's because of his anger and desperation to have a girlfriend.
We've discussed it and I've gently raised the subject of therapy and he was immediately defensive.
After that I just thought I'll leave him to his sadness and loneliness because he has his narrative and I'm sure I'm not the first woman who has suggested ways he could change it.